The reason? Because some people will get better than the average and other ISPs could cherry pick the best customers.

Misleading

"Moving to typical speed ranges will potentially be highly misleading as the average performance will vary depending on where people live," said BT.

"Enforcing typical speed ranges is also dangerous as it could encourage more ISPs to cherry pick customers who will increase their average, leaving customers in rural and suburban areas under-served. That would encourage digital exclusion rather than tackle it."

BT has also accused Ofcom of flawed methodology in how they gather the data.

"Broadband speeds vary from line to line and so it is meaningless to use one speed for advertising. That is why we use the term "up to", continued BT.

"The most important thing is that customers are told what speed their line is capable of supporting at the point of sale and BT does this."